[deploy] pref: support text actor pre render mode
This commit is contained in:
Nomango
parent
76b3b4fbed
commit
6f880db21e
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@ -25,7 +25,13 @@
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namespace kiwano
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{
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TextActor::TextActor() {}
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// Ô¤Áô³öÃè±ßµÄ¿Õ¼ä
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const Point cached_texture_offset = Point{ 5, 5 };
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TextActor::TextActor()
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: is_cache_dirty_(false)
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{
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}
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TextActor::TextActor(const String& text)
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: TextActor(text, TextStyle())
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@ -33,6 +39,7 @@ TextActor::TextActor(const String& text)
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}
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TextActor::TextActor(const String& text, const TextStyle& style)
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: TextActor()
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{
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SetStyle(style);
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SetText(text);
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@ -43,12 +50,22 @@ TextActor::~TextActor() {}
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void TextActor::OnRender(RenderContext& ctx)
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{
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if (layout_)
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{
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if (texture_cached_)
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{
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Rect dest_rect = GetBounds();
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dest_rect.left_top -= cached_texture_offset;
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dest_rect.right_bottom -= cached_texture_offset;
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ctx.DrawTexture(*texture_cached_, nullptr, &dest_rect);
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}
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else
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{
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ctx.SetCurrentBrush(fill_brush_);
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ctx.SetCurrentStrokeStyle(outline_stroke_);
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ctx.DrawTextLayout(*layout_, Point{}, outline_brush_);
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}
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}
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}
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Size TextActor::GetSize() const
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{
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@ -67,6 +84,7 @@ void TextActor::SetText(const String& text)
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{
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layout_->Reset(text, style_);
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content_ = text;
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is_cache_dirty_ = true;
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}
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catch (SystemError& e)
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{
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@ -76,6 +94,7 @@ void TextActor::SetText(const String& text)
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void TextActor::SetStyle(const TextStyle& style)
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{
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is_cache_dirty_ = true;
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style_ = style;
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if (layout_)
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layout_->Reset(content_, style);
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@ -85,6 +104,7 @@ void TextActor::SetFont(FontPtr font)
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{
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if (style_.font != font)
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{
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is_cache_dirty_ = true;
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style_.font = font;
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if (layout_)
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layout_->SetFont(font);
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@ -95,6 +115,7 @@ void TextActor::SetUnderline(bool enable)
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{
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if (style_.show_underline != enable)
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{
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is_cache_dirty_ = true;
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style_.show_underline = enable;
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if (layout_)
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layout_->SetUnderline(enable);
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@ -105,6 +126,7 @@ void TextActor::SetStrikethrough(bool enable)
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{
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if (style_.show_strikethrough != enable)
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{
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is_cache_dirty_ = true;
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style_.show_strikethrough = enable;
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if (layout_)
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layout_->SetStrikethrough(enable);
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@ -115,6 +137,7 @@ void TextActor::SetWrapWidth(float wrap_width)
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{
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if (style_.wrap_width != wrap_width)
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{
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is_cache_dirty_ = true;
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style_.wrap_width = wrap_width;
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if (layout_)
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layout_->SetWrapWidth(wrap_width);
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@ -125,6 +148,7 @@ void TextActor::SetLineSpacing(float line_spacing)
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{
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if (style_.line_spacing != line_spacing)
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{
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is_cache_dirty_ = true;
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style_.line_spacing = line_spacing;
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if (layout_)
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layout_->SetLineSpacing(line_spacing);
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@ -135,6 +159,7 @@ void TextActor::SetAlignment(TextAlign align)
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{
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if (style_.alignment != align)
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{
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is_cache_dirty_ = true;
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style_.alignment = align;
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if (layout_)
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layout_->SetAlignment(align);
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@ -144,22 +169,26 @@ void TextActor::SetAlignment(TextAlign align)
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void TextActor::SetFillBrush(BrushPtr brush)
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{
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fill_brush_ = brush;
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is_cache_dirty_ = true;
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}
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void TextActor::SetOutlineBrush(BrushPtr brush)
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{
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outline_brush_ = brush;
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is_cache_dirty_ = true;
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}
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void TextActor::SetOutlineStrokeStyle(StrokeStylePtr stroke)
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{
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outline_stroke_ = stroke;
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is_cache_dirty_ = true;
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}
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void TextActor::SetFillColor(const Color& color)
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{
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if (fill_brush_)
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{
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is_cache_dirty_ = true;
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fill_brush_->SetColor(color);
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}
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else
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@ -172,6 +201,7 @@ void TextActor::SetOutlineColor(const Color& outline_color)
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{
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if (outline_brush_)
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{
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is_cache_dirty_ = true;
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outline_brush_->SetColor(outline_color);
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}
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else
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@ -184,11 +214,26 @@ void TextActor::SetTextLayout(TextLayoutPtr layout)
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{
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if (layout_ != layout)
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{
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is_cache_dirty_ = true;
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layout_ = layout;
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ForceUpdateLayout();
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}
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}
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void TextActor::SetPreRenderEnabled(bool enable)
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{
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if (enable)
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{
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texture_cached_ = MakePtr<Texture>();
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}
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else
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{
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texture_cached_ = nullptr;
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}
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render_ctx_ = nullptr;
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is_cache_dirty_ = true;
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}
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void TextActor::Update(Duration dt)
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{
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this->UpdateDirtyLayout();
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@ -206,6 +251,10 @@ void TextActor::UpdateDirtyLayout()
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{
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ForceUpdateLayout();
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}
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else if (is_cache_dirty_)
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{
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UpdateCachedTexture();
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}
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}
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void TextActor::ForceUpdateLayout()
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@ -214,6 +263,7 @@ void TextActor::ForceUpdateLayout()
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{
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layout_->UpdateIfDirty();
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SetSize(layout_->GetSize());
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UpdateCachedTexture();
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}
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else
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{
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@ -221,4 +271,30 @@ void TextActor::ForceUpdateLayout()
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}
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}
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void TextActor::UpdateCachedTexture()
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{
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if (!texture_cached_)
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{
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return;
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}
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const auto expectedSize = layout_->GetSize() + cached_texture_offset * 2;
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if (!render_ctx_)
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{
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render_ctx_ = RenderContext::Create(*texture_cached_, expectedSize);
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}
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else if (render_ctx_->GetSize() != expectedSize)
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{
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render_ctx_->Resize(expectedSize);
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}
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render_ctx_->BeginDraw();
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render_ctx_->Clear();
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render_ctx_->SetCurrentBrush(fill_brush_);
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render_ctx_->SetCurrentStrokeStyle(outline_stroke_);
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render_ctx_->DrawTextLayout(*layout_, cached_texture_offset, outline_brush_);
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render_ctx_->EndDraw();
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is_cache_dirty_ = false;
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}
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} // namespace kiwano
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@ -142,6 +142,10 @@ public:
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/// @brief 设置文本布局
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void SetTextLayout(TextLayoutPtr layout);
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/// \~chinese
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/// @brief 设置预渲染模式，在描边等情况下会有更好的性能
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void SetPreRenderEnabled(bool enable);
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/// \~chinese
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/// @brief 更新脏文字布局
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/// @details 仅当文字布局脏时更新
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@ -159,13 +163,18 @@ protected:
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bool CheckVisibility(RenderContext& ctx) const override;
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void UpdateCachedTexture();
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private:
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bool is_cache_dirty_;
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String content_;
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TextStyle style_;
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TextLayoutPtr layout_;
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BrushPtr fill_brush_;
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BrushPtr outline_brush_;
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StrokeStylePtr outline_stroke_;
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TexturePtr texture_cached_;
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RenderContextPtr render_ctx_;
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};
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/** @} */
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